Combination pump, air compressor, and vacuum pump



H. HORN COMBINATION PUMP, AIR COMPRESSOR, AND VACUUM PUMP Filed June 30. 1921 'IHIL INVENTOR.

' ATTORNEYS.

Patented Got, 28, T9240 l ,l, rt,

HUGH HORN, OF SAN FRANCISCO, CALIFOIA.

come'rron roan,- AIR CQMPRESSOR, AND vacuum rs.

Application filed. June 30, 1921. Serial No. 481,616.

T0 all whom it may concern:

Be it known that 1, HUGE HORN, -a citizen of the United States, and resident of San Francisco, county of San-Francisco, and State of California, have invented a new and useful Combination Pump, Air Compressor, and Vacuum Pump, of which the following is a specification.

The present invention relates to improvements in pumps and more particularly in centrifugal pumps, and its principaljobject is to provide an air compressor in which .a liquid is caused to circulate by centrifugal means and in which air is caused to enter into the circulating liquid and to accompany the same into a super-imposed chamber,

' where the air separates from the liquid and from where the air may be guided into a suitable reservoir while the liquid continues its circulation.

The preferred form of my invention is illustrated in the accompanying drawing which rep-resents a vertical cross-section through a. complete centrifugal-compression ppmpembodying the above outlined princip e.

Referring to the drawing in detail, it will be seen that the hollow shaft 1) which is adapted to be rotated by some suitable power, is an integral portion of the rotor (2). The latter consists of a concave or conical disc (6), the disc having a plurality of radial passages (7) leading from the hollow shaft to the circumference of the disc. The hollow shaft connects with a source of water referred to later and the disc is enclosed in a housing (8), which has a discharge (9). near its bottom. The principles on which the device thus far'described works are well understood in the art. The rotor 'is rotated through the shaft (1) and the centrifugal force set upin the same drives the air contained in the radial passages to the eriphery, thereby creating a vacuum which causes the water to rush in and to be acted on by the same centrifugal power which throws it outwardly with great force against the concave surfaces .of a plurality of buckets (11) which are secured to a wheel (12) provided above the rotor in such a man: ner that a small clearance is left between the two. The rim (14) of the wheel is of larger diameter than the rotor so that thebuckets depending from the rim surround the rotor and catch the water forced out of the same,

(4) at the end of a hollow shaft 4 The buckets drive the wheel (12), the hub (16) of which is rotatably secured on the main shaft (1) and has a gear wheel (17 keyed thereto which meshes with and drives the pinion 18), which latter, through a gear wheel (19), drives the pinion (21) keyed to the shaft 1). In thismanner the centrifugal force of the water driven out of the rotor drives the wheel (12) and, through a series of reducing gears, the shaft (1), so that allthe force penned up in the water is utilized in giving additional power to the main shaft (l).- The water, after having impelled the buckets, falls down and runs out through the discharge (9').

The hollow shaft (6) is made a part of a circulating system, which comprises a cylindrical chamber (26) underneath the hollow shaft, a spreader (27) in said chamber being provided with a drop valve (28), and a system of piping leading into the discharge (9). The chamber (26) is surrounded by an annularair chamber (31) which'is connected with outside air through the tube .(32) and with the chamber (26) through a plurality of radially arranged tubes (33). The pump works 'as' follows:

The circulating system is filled with water or any other sultable liquid to about the height indicated in the drawing. When the rotor begins to rotate, the liquid is sucked upwardly and caused by the spreader to pass over and around the tubes (33) where it becomes mixed with air entering thr the pipe (32). Liquid and air together I are forced through the radial passages of the rotor and forced outwardly ainst the buckets, thereby driving thew eel (12). When their force becomes exhausted the water drops and the air rises and is forced into an air reservoir through theopenmg. (35). As the pressure in the main chamber increases, and a vacuum is created underneath the chamber (26) by the withdral of the water from the pump, the water enclosed in the housing is drawn and forced 1ibntothe)discharge (9) to return to the charmer (26 i The air pipe (32) is provided with a valve (38) so that the air supply can be: shut ofi at any time.

I claim:

1. In a centrifugal compression pump, an upper chamber having, a perforated embossment in its bottdm, a lower chamber terating in a neck 1 1:". with f ough' the perforation in the embossment, a centrifugal rotor adapted to rotate in the embossment so as to draw on a liquid contained in the lower chamber and a. plurality of transverse tubes supported in the wall of the lower chamber extending into the latter and communicating with the atmosphere allowing air to be drawn intothe liquid when the latter is acted on by the rotor.

2. In a centrifugal compression pump, an upper chamber having a perforated embossment in its bottom, a lower chamber terminating in a neck communicating with the perforation in the embossment, a centrifugal rotor adapted to rotate in the embossment so as to draw on a liquid contained in the lower chamber, and a. plurality of transverse tubes supported in the wall of the lower chamber extending into the latter and communicating with the atmosphere allowing air to be drawn into the liquid when the latter is acted on by the rotor, and a communication between the lower portion of the upper chamber and the bottom of the lower chamber allowing the liquid to return bossment in its bottom, a lower chamber termin ating in a neck communicating with the perforation in the embossment, a centrifugal rotor adapted to rotate in the embossment so as to draw on a liquid contained in the lower chamber, and a plurality of trans verse tubes supported in the wall of the lower chamber extending into the latter and communicating with the atmosphere allowing air to be drawn into the liquid when the latter is acted on by the rotor, a spreader occupying the central portion of the lower chamber for forcing the liquid over the tubes.

HUGH HORN. 

